CN213121907U - Sensing device for metal flaw detection - Google Patents

Abstract

The utility model discloses a sensing device for metal flaw detection, which comprises a connecting seat, a base plate and a heat dissipation unit; connecting seat: the bottom is connected with a shell through a connecting lug; substrate: the sensor body is fixed on the inner side of the shell, and the bottom of the sensor body is provided with the sensor body; a heat dissipation unit: including refrigeration piece, heat conduction silica gel piece and radiating fin, the refrigeration piece is installed and is set up at the bottom of base plate and cold junction laminating base plate, radiating fin fixes in the hot junction region of refrigeration piece, and heat conduction silica gel piece bonds in the junction of radiating fin and refrigeration piece, this a sensing device for metal is detected a flaw, and the radiating effect is good, and is efficient, can satisfy the user demand, and it is convenient to maintain, and the work precision is high, long service life.

Description

Sensing device for metal flaw detection

Technical Field

The utility model relates to a sensing device technical field specifically is a sensing device for metal is detected a flaw.

Background

With the rapid development of the manufacturing industry, the requirement for product quality inspection is higher and higher, more and more keys, complex parts and even internal defects of products need to be strictly inspected, and the internal structure size of the products need to be accurately measured, the traditional nondestructive inspection methods such as ultrasonic inspection and radiographic inspection cannot meet the requirement, so many advanced nondestructive inspection technologies are developed and applied to the fields, most of metal flaw detection and inspection need to use a sensing device, the sensing device can generate heat in the using process, the heat can have adverse effects on the detection precision of the sensing device, the existing sensing device for metal flaw detection has poor heat dissipation, and the using requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a sensing device for metal is detected a flaw, the radiating effect is good, and is efficient, can satisfy the user demand, and it is convenient to maintain, and the work precision is high, and long service life can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sensing device for metal flaw detection comprises a connecting seat, a base plate and a heat dissipation unit;

connecting seat: the bottom is connected with a shell through a connecting lug;

substrate: the sensor body is fixed on the inner side of the shell, and the bottom of the sensor body is provided with the sensor body;

a heat dissipation unit: the refrigerator comprises a refrigeration piece, a heat-conducting silica gel piece and a heat-radiating fin, wherein the refrigeration piece is arranged at the bottom of a base plate, the cold end of the refrigeration piece is attached to the base plate for arrangement, the heat-radiating fin is fixed in the hot end area of the refrigeration piece, and the heat-conducting silica gel piece is bonded at the joint of the heat-radiating fin and the refrigeration piece;

the input end of the refrigeration piece is electrically connected with the output end of the external single chip microcomputer, and the sensor body is electrically connected with the external single chip microcomputer in a bidirectional mode.

Further, still include the fastener, the fastener is fixed at the top of connecting seat, and the fastener is with the locating hole joint on the external connection unit to assemble this sensing device and outside complex machinery, it adopts the module design, and the installation is dismantled conveniently, is convenient for maintain.

Furthermore, still include the electromagnetic shield membrane, the casing is bilayer structure, and the electromagnetic shield membrane distributes in the intermediate layer in the casing, and the electromagnetic shield membrane is used for shielding external magnetic field to avoid its influence to sensor body work, guaranteed sensor body's work precision.

Further, still include the silica gel packing ring, the silica gel packing ring is fixed in the junction of base plate and casing, and the silica gel packing ring weakens through elastic deformation to the bad vibrations on the base plate to avoid vibrations to the influence of sensor body work, guaranteed the work precision of sensor body.

Further, still include transparent protection piece, transparent protection piece is fixed at the opening part of casing, and transparent protection piece sets up corresponding sensor body's detection end, and transparent protection piece protects sensor body, avoids this integument of sensor to touch the damage, has guaranteed the life who answers sensor body.

Compared with the prior art, the beneficial effects of the utility model are that: this a sensing device for metal detects a flaw has following benefit:

1. on the heat gathering of sensor body production the base plate, the base plate carries out the energy exchange with the cold junction of refrigeration piece to dispel the heat to the sensor body, on the heat gathering of refrigeration piece hot junction heat conduction silica gel piece, heat on the heat conduction silica gel piece distributes the external world through radiating fin, its radiating effect is good, and is efficient, can satisfy the user demand.

2. The fastener is clamped with the positioning hole in the external connection unit, so that the sensing device is assembled with an external matched machine, the sensing device is designed in a module, and the sensing device is convenient to mount and dismount and convenient to maintain.

3. The electromagnetic shielding film is used for shielding an external magnetic field, so that the influence of the electromagnetic shielding film on the work of the sensor body is avoided, and the silica gel gasket weakens the bad vibration on the substrate through elastic deformation, so that the influence of the vibration on the work of the sensor body is avoided, and the work precision of the sensor body is ensured.

4. Transparent protection spare protects the sensor body, avoids the sensor body quilt to touch the damage, has guaranteed the life who answers the sensor body.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the structure of the present invention.

In the figure: the sensor comprises a connecting seat 1, a fastening piece 2, a connecting lug 3, an electromagnetic shielding film 4, a shell 5, a heat dissipation unit 6, a refrigeration sheet 61, a heat conduction silica gel sheet 62, a heat dissipation fin 63, a silica gel gasket 7, a base plate 8, a sensor body 9 and a transparent protection piece 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a sensing device for metal flaw detection comprises a connecting seat 1, a base plate 8 and a heat dissipation unit 6;

connecting seat 1: the bottom is connected with a shell 5 through a connecting lug 3;

substrate 8: a sensor body 9 is fixed on the inner side of the shell 5 and the bottom of the shell is provided with a sensor body;

the heat dissipation unit 6: the refrigerator comprises a refrigerating sheet 61, a heat-conducting silica gel sheet 62 and a heat-radiating fin 63, wherein the refrigerating sheet 61 is arranged at the bottom of a base plate 8, the cold end of the refrigerating sheet is attached to the base plate 8 for arrangement, the heat-radiating fin 63 is fixed in the hot end area of the refrigerating sheet 61, and the heat-conducting silica gel sheet 62 is bonded at the joint of the heat-radiating fin 63 and the refrigerating sheet 61;

the heat generated by the sensor body 9 is gathered on the substrate 8, the substrate 8 and the cold end of the refrigeration piece 61 perform energy exchange, so that the sensor body 9 is radiated, the heat at the hot end of the refrigeration piece 61 is gathered on the heat-conducting silica gel piece 62, and the heat on the heat-conducting silica gel piece 62 is radiated to the outside through the radiating fins 63, so that the heat radiation effect is good, the efficiency is high, and the use requirement can be met;

wherein, the input electricity of refrigeration piece 61 is connected the output of outside singlechip, and sensor body 9 is connected with outside singlechip two-way electricity.

Still include fastener 2, fastener 2 is fixed at the top of connecting seat 1, and fastener 2 and the locating hole joint on the external connection unit to assemble this sensing device and outside complex machinery, it adopts the module design, and the installation is dismantled conveniently, is convenient for maintain.

Still include electromagnetic shielding film 4, casing 5 is bilayer structure, and electromagnetic shielding film 4 distributes in the intermediate layer in casing 5, and electromagnetic shielding film 4 is used for shielding external magnetic field to avoid its influence to sensor body 9 work, guaranteed sensor body 9's work precision.

Still include silica gel gasket 7, silica gel gasket 7 is fixed in the junction of base plate 8 and casing 5, and silica gel gasket 7 weakens through elastic deformation to the bad vibrations on the base plate 8 to avoid vibrations to the influence of sensor body 9 work, guaranteed sensor body 9's work precision.

The sensor further comprises a transparent protection piece 10, the transparent protection piece 10 is fixed at the opening of the shell 5, the transparent protection piece 10 is arranged corresponding to the detection end of the sensor body 9, the transparent protection piece 10 protects the sensor body 9, the sensor body 9 is prevented from being touched and damaged, and the service life of the sensor body 9 is guaranteed.

When in use: on the heat gathering of sensor body 9 production 8, base plate 8 carries out the energy exchange with the cold junction of refrigeration piece 61 to dispel the heat to sensor body 9, the heat gathering of refrigeration piece 61 hot junction is to heat conduction silica gel piece 62, and the heat on the heat conduction silica gel piece 62 gives off the external world through radiating fin 63.

The fastener 2 is clamped with a positioning hole on the external connecting unit, so that the sensing device is assembled with an external matched machine.

The electromagnetic shielding film 4 is used to shield the external magnetic field, thereby avoiding its influence on the operation of the sensor body 9.

The silica gel gasket 7 weakens the undesirable vibration on the substrate 8 through elastic deformation, thereby avoiding the influence of the vibration on the work of the sensor body 9.

The transparent protection member 10 protects the sensor body 9 from being touched and damaged.

It is worth noting that: the refrigerating sheet 61 is configured according to the actual application scenario, the sensor body 9 is a non-contact sensor, such as a hall sensor, and the transparent protection member 10 is a transparent protection member in the authorization publication No. CN 103901484B.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A sensing device for metal inspection, characterized by: comprises a connecting seat (1), a substrate (8) and a heat dissipation unit (6);

connecting seat (1): the bottom is connected with a shell (5) through a connecting lug (3);

substrate (8): a sensor body (9) is fixed on the inner side of the shell (5) and the bottom of the shell is provided with the sensor body;

heat dissipation unit (6): the refrigerator comprises a refrigerating piece (61), a heat-conducting silica gel piece (62) and cooling fins (63), wherein the refrigerating piece (61) is installed at the bottom of a base plate (8), the cold end of the refrigerating piece is attached to the base plate (8) for arrangement, the cooling fins (63) are fixed in the hot end area of the refrigerating piece (61), and the heat-conducting silica gel piece (62) is bonded at the connecting part of the cooling fins (63) and the refrigerating piece (61);

the input end of the refrigeration sheet (61) is electrically connected with the output end of an external singlechip, and the sensor body (9) is electrically connected with the external singlechip in a bidirectional mode.

2. A sensing device for metal inspection according to claim 1, wherein: the connecting device is characterized by further comprising a fastener (2), wherein the fastener (2) is fixed to the top of the connecting seat (1), and the fastener (2) is clamped with a positioning hole in the external connecting unit.

3. A sensing device for metal inspection according to claim 1, wherein: the electromagnetic shielding shell is characterized by further comprising an electromagnetic shielding film (4), wherein the shell (5) is of a double-layer structure, and the electromagnetic shielding film (4) is distributed in an interlayer in the shell (5).

4. A sensing device for metal inspection according to claim 1, wherein: still include silica gel packing ring (7), silica gel packing ring (7) are fixed in the junction of base plate (8) and casing (5).

5. A sensing device for metal inspection according to claim 1, wherein: the sensor further comprises a transparent protection piece (10), the transparent protection piece (10) is fixed at the opening of the shell (5), and the transparent protection piece (10) is arranged corresponding to the detection end of the sensor body (9).

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